TNC: Use TNC as phase2 method

[Masashi Honma]

> If this is for EAP-TTLS, you will need to use phase2="autheap=TNC" style
> configuration for any EAP method since EAP-TTLS supports both non-EAP
> and EAP methods as the inner method.

Thank you for reply.
But same problem occurs with this setting.

> However, I don't think hostapd is able to do
> this without some modifications.

I think so too.

> Anyway, in most use cases, the goal is not to require TNC to be
> explicitly configured for the client, but to use it automatically in
> phase 2 if the server asks to use TNC.

I understood.
I will investigate this more.

Regards,
Masashi Honma.